<template>
	<view>

		<view class="goods_list">

			<view v-for="(goods,index) in goodsList" :key="index" @click="goToDetail(goods)">

				<my-goods :goods="goods">

				</my-goods>

			</view>
		</view>

	</view>
</template>

<script>
	export default {
		data() {
			return {
				//请求参数对象
				queryObj: {
					query: "",
					cid: "",
					pagenum: 1,
					pagesize: 10
				},
				goodsList: [],
				total: 0,
				//节流阀 防止正在加载数据时 到底部又开始加载数据
				isLoading: false
			}
		},
		onLoad(options) {
			this.queryObj.query = options.query || '';
			this.queryObj.cid = options.cid || '';
			this.getGoodsList();
		},
		methods: {
			async getGoodsList(cb) {

				this.isLoading = true;

				console.log("queryObj", this.queryObj)
				const {
					data: res,
				} = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)

				console.log('数据返回', res)
				//只要数据请求完毕，就立即按需调用  cb 回调函数
				cb && cb();

				//关闭节流阀
				this.isLoading = false;

				if (res.meta.status !== 200)
					return uni.$showMsg()
				this.goodsList = [...this.goodsList, ...res.message.goods]
				console.log("合并后的数组", this.goodsList)
				this.total = res.message.total;
			},
			goToDetail(goods) {
				uni.navigateTo({
					url: '../goods_detail/goods_detail?goods_id=' + goods.goods_id
				})
			}
		},
		onReachBottom() {
			if (this.queryObj.pagenum * this.queryObj.pagesize >= this.total) {
				uni.$showMsg("数据加载完毕")
				return
			}

			if (this.isLoading) {
				return
			}
			//让页码值自增加1
			this.queryObj.pagenum++;
			this.getGoodsList();
		},
		onPullDownRefresh() {
			//重置数据
			this.queryObj.pagenum = 1;
			this.isLoading = false;
			this.total = 0;
			this.goodsList = [];

			this.getGoodsList(() => uni.stopPullDownRefresh());
		}
	}
</script>

<style lang="scss">

</style>
